Adapter for telephone data communication equipment



FIG. 1 is a front, top, right perspective view of an adapter for telephone data communication equipment showing my new design;

FIG. 2 is a rear, bottom, right perspective view thereof.

FIG. 3 is a front elevational view thereof;

FIG. 4 is a top plan view thereof; and

FIG. 5 is a left side elevational view thereof. 

The ornamental design for adapter for telephone data communication equipment, as shown and described. 